Finding the Fourth Proportional to 56,017.50, 77,305.77 and 30,868.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,017.50 : 77,305.77 = 30,868.62 : x
2. Step 2: Convert to fraction form
   56,017.50/77,305.77 = 30,868.62/x
3. Step 3: Cross multiply
   56,017.50x = 77,305.77 × 30,868.62
4. Step 4: Simplify right side
   56,017.50x = 2,386,322,437.94
5. Step 5: Solve for x
   x = 2,386,322,437.94/56,017.50
6. Step 6: Final answer
   x = 42,599.59